Sort an array with keys

1

Hi I want to sort and array by other array let me show you example.

Input array: 
$input_array = array(
  '51171#2'  => array(
     'download_id'  => 51171,
     'variation_id' => 2,
  ),
  '143516#2' => array(
     'download_id'  => 143516,
     'variation_id' => 2,
  ),
  '396346#2' => array(
     'download_id'  => 396346,
     'variation_id' => 2,
  ),
  '143516#1' => array(
     'download_id'  => 143516,
     'variation_id' => 1,
  ),
  '396344#2' => array(
     'download_id'  => 396344,
     'variation_id' => 2,
  ),
  '396346#1' => array(
     'download_id'  => 396346,
     'variation_id' => 1,
  ),
  '396344#1' => array(
     'download_id'  => 396344,
     'variation_id' => 1,
  ),
);

Sorting sequence: 
$order = array( 143516, 396344, 396346 );

Output sorted array should be like below: 
$result_array = array(
  '143516#2' => array(
     'download_id'  => 143516,
     'variation_id' => 2,
  ),
  '143516#1' => array(
     'download_id'  => 143516,
     'variation_id' => 1,
  ),
  '396344#2' => array(
     'download_id'  => 396344,
     'variation_id' => 2,
  ),
  '396344#1' => array(
     'download_id'  => 396344,
     'variation_id' => 1,
  ),
  '396346#2' => array(
     'download_id'  => 396346,
     'variation_id' => 2,
  ),
  '396346#1' => array(
     'download_id'  => 396346,
     'variation_id' => 1,
  ),
  '51171#2'  => array(
     'download_id'  => 51171,
     'variation_id' => 2,
  ),
);

I know it is bit tricky, but anyone help will be appreciated. Thanks

2

This solution will work

$tempArray = [];
foreach($input_array as $key => $elem) {
    $newKey = preg_replace('/#.*/', '', $key);
    $tempArray[$newKey][] = $elem;
}

unset($input_array);

$orderedArray = [];
foreach ($order as $key) {
    if (array_key_exists($key, $tempArray)) {
        $orderedArray[$key] = $tempArray[$key];
        unset($tempArray[$key]);
    }
}

$tempArray = $orderedArray + $tempArray;

unset($order, $orderedArray);

$sortedArray = [];
foreach($tempArray as $elements) {
    foreach($elements as $element) {
        $sortedArray[$element['download_id'].'#'.$element['variation_id']] = $element;
    }
}

return $sortedArray;